Lake Mead Still Shrinking #NASA

View Image Comparison View Both Images In May 1937, shortly after the Hoover Dam was completed and 27 months after Lake Mead started filling, the water level was 1078.70 feet (328.79 meters) above sea level. For 77 years since then, the water level behind the dam has not dropped below 1080 feet. But it just might do that soon. As the largest reservoir in the United States, Lake Mead is fed mostly by the Colorado River and its tributaries. They are in turn fed by snowmelt from the Rocky Mountains. Lake Mead and the river supply water to farms, businesses, and residents in Nevada, southern California, Arizona, and northern Mexico, and inputs and outflows from the lake are tightly managed by agreements between the surrounding states and Mexico. According to the U.S. National Park Service and the Bureau of Reclamation, the amount of water flowing out of and evaporating from La...